[Bug 858575] Add readout for canned responses localization.

Oy. This was a fun trip down SQL lane. I have some ideas for improving the readouts a little bit. Coming soon to a PR near you!

To test:

* http://kitsune.localhost/pt-BR/localization Notice that the new readout at the bottom says everything needs translated. Translate something, notice how it says it is translated now. The needs updated, and needs review states work too.
* http://kitsune.localhost/de/localization Notice that the new readout is not on the page, because German is not a AAQ Locale.

r?